Weather on August 12 at Grand Canyon
Grand Canyon National Park
Based on 56 years of data from Flagstaff, AZ
Elevation Note: Grand Canyon sits at 7,000 ft. Expect temperatures 25°F cooler than the data shown below, which comes from Flagstaff, AZ at a lower elevation.
Planning Your Visit
August 12th in Grand Canyon National Park (via Flagstaff, AZ) typically brings pleasant summer weather, with average highs around 79°F and lows near 51°F — a 28°F daily swing. Over 56 years of records, the warmest August 12th was in 2002 (76°F average), while the coldest was 1979 (56°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 55% of August 12th dates historically, with the wettest August 12th recording 1.99" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 12th in Grand Canyon? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 77°F | 55°F | 0" | 0" |
| 2025 | 91°F | 47°F | 0" | 0" |
| 2024 | 81°F | 53°F | 0.03" | 0" |
| 2023 | 75°F | 50°F | 0.22" | 0" |
| 2022 | 75°F | 53°F | 0.09" | 0" |
| 2021 | 78°F | 56°F | 0.01" | 0" |
| 2020 | 86°F | 51°F | 0" | 0" |
| 2019 | 81°F | 50°F | 0" | 0" |
| 2018 | 80°F | 53°F | 0.01" | 0" |
| 2017 | 76°F | 49°F | 0.17" | 0" |
| 2016 | 77°F | 49°F | 0.52" | 0" |
| 2015 | 75°F | 55°F | 0.25" | 0" |
| 2014 | 71°F | 56°F | 0.77" | 0" |
| 2013 | 79°F | 48°F | 0.09" | 0" |
| 2012 | 81°F | 51°F | 0" | 0" |
| 2011 | 84°F | 53°F | 0" | 0" |
| 2010 | 80°F | 50°F | 0" | 0" |
| 2009 | 86°F | 54°F | 0.25" | 0" |
| 2008 | 83°F | 54°F | 0" | 0" |
| 2007 | 86°F | 52°F | 0" | 0" |
| 2006 | 73°F | 55°F | 0.4" | 0" |
| 2005 | 74°F | 50°F | 0.03" | 0" |
| 2004 | 81°F | 53°F | 0.95" | 0" |
| 2003 | 84°F | 56°F | 0" | -- |
| 2002 | 91°F | 60°F | 0" | 0" |
| 2001 | 78°F | 52°F | 0.09" | -- |
| 2000 | 79°F | 56°F | 0.05" | 0" |
| 1999 | 76°F | 36°F | 0" | -- |
| 1998 | 82°F | 53°F | 0" | -- |
| 1997 | 78°F | 48°F | 0" | -- |
| 1996 | 87°F | 57°F | 0" | -- |
| 1995 | 79°F | 57°F | 0.13" | 0" |
| 1994 | 77°F | 57°F | 0.03" | 0" |
| 1993 | 84°F | 47°F | 0" | 0" |
| 1992 | 82°F | 52°F | 0" | 0" |
| 1991 | 78°F | 50°F | 0" | 0" |
| 1990 | 79°F | 54°F | 0.03" | 0" |
| 1989 | 80°F | 47°F | 0.26" | 0" |
| 1988 | 78°F | 50°F | 0.11" | 0" |
| 1987 | 74°F | 50°F | 1.99" | 0" |
| 1986 | 74°F | 55°F | 0.06" | 0" |
| 1985 | 80°F | 45°F | 0" | 0" |
| 1984 | 82°F | 54°F | 0" | 0" |
| 1983 | 80°F | 46°F | 0" | 0" |
| 1982 | 67°F | 54°F | 0.71" | 0" |
| 1981 | 69°F | 46°F | 0.14" | 0" |
| 1980 | 85°F | 59°F | 0" | 0" |
| 1979 | 62°F | 50°F | 0.38" | 0" |
| 1978 | 73°F | 47°F | 0.11" | 0" |
| 1977 | 75°F | 53°F | 0.2" | 0" |
| 1976 | 82°F | 46°F | 0" | 0" |
| 1975 | 77°F | 47°F | 0.06" | 0" |
| 1974 | 78°F | 45°F | 0" | 0" |
| 1973 | 88°F | 50°F | 0" | 0" |
| 1972 | 80°F | 49°F | 0.02" | 0" |
| 1971 | 79°F | 51°F | 0.35" | 0" |